Modification

Nominal
nominal РN, MPa (kgf/cm2)

Connection thread M*

D, mm

max Ø                   sensor, mm

Wall thickness, mm

Standard sheath material

Thermowell  insertion length L, mm

Thermowell immersion length U, mm

from

to

UNKJ 015

16 (160)

• Metric, according to GOST 24705, M12 to M33

• Straight pipe, according to GOST 6357, G3/8 to G1

• Tapered according to GOST 6111, К1/4 to К1

10

6

1

S10

80

1250

U=L
for thread
М12 – М33
and
G3/8 - G1

U=L-13…19

for thread
К1/4 to К1

20

12

2

S10, S13

6000

20 (200)

8

5.5

1

S10

3150

14

10

1.75

S10, S13

6000

16

10

2

S10, S13

20

12

2.5

S10, S13

25 (250)

10

6

1.5

S10

1250

14

9

2

S10, S13

6000

16

10

2.2

S10, S13

20

12

3

S10, S13

Version A

Version B

Version C

with groove to GOST 10549

with tapered
thread

according to GOST 22526

according to OST 26.260.460

Pic. 1

Pic. 2

Pic. 3

Pic. 4

Pic. 5

M

Dm, mm

ℓP, mm

Dm, mm

ℓP, mm

К

ℓP  min , mm

Dm, mm

ℓP, mm

Dm, mm

ℓP, mm

М20х1,5

31

17

—

½

21.0

25

14

31

17

G1/2

31

17

¾

21.5

26

14

31

17

G3/4

—

38

22

1

26.5

32

16

36

22

М27х2

38

22

1½

27.5

32

16

36

22

G1

48

32

—

39

18

43

32

М33х2

48

32

39

18

43

32

UNKJ

015

-

27

.

B

.

200

-

G1/2

.

-

S13

.

S

-

20

-

630

/

100

1

2

3

4

5

6

7

8

9

10

11

12

Field no.

Structure

Field code

Designation

1

Manufacturer's code

UNKJ

2

Thermowell modification number

015

welded, made of seamless tube with welded plug

3

Mounting thread M

12; 16; 18; 20; 24

М12х1,5; М16х1,5; М18х1,5; М20х1,5; М24х1,5

27; 33

М27х2; М33х2

G3/8; G1/2; G3/4; G1

straight pipe thread GOST 6357

K1/4; K1/2; K3/4; K1

British taper thread GOST 6111

4

Design depending on thermowell seal at site

A

A version (according to GOST 10549)

B

B version (according to GOST 22526)

C

C version for weldolet  installation according to OST 26.260.460-99

5

Nominal pressure

1 to 250

nominal (rated) pressure in kgf/cm2

6

Inner thread N for
sensor

М20х1,5 – not specified

G1/2;

straight pipe thread GOST 6357

K1/2;

British taper thread, GOST 6111 only for installation of sensors with fixed fitting.

7

Design depending on sensor seal inside thermowell

for movable fitting (field is not filled)

G

for fixed fitting

8

Immersion end material*

S10

steel 12Cr18Ni10T

S08

steel 08Cr18Ni10Т;

S13

steel 10Cr17Ni3M2T

9

Presence/absence of thermowell
sheath coating

without coating (field is not filled)

S

wear-resistant and corrosion-resistant coating

10

Working end outer diameter, D

8; 10; 14; 16; 20

dimensions in mm

11

sensor length L

600

Distance from sealing face, mm It is recommended to be selected from standard range, GOST 6636-69

12

Coating length

l

field is not filled if thermowell without coating is used.